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Finding the Fourth Proportional to 6,994.43, 10,491.65 and 6,690.73

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Solution

The fourth proportional to 6,994.43, 10,491.65 and 6,690.73 is: 10,036.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,994.43 : 10,491.65 = 6,690.73 : x
  2. Step 2: Convert to fraction form
    6,994.43/10,491.65 = 6,690.73/x
  3. Step 3: Cross multiply
    6,994.43x = 10,491.65 × 6,690.73
  4. Step 4: Simplify right side
    6,994.43x = 70,196,797.40
  5. Step 5: Solve for x
    x = 70,196,797.40/6,994.43
  6. Step 6: Final answer
    x = 10,036.10

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.